呼吸道病毒的空气传播传染性:比较分析和减轻影响
Alex Mikszewski1,2, Luca Stabile3, Giorgio Buonanno1,3
1International Laboratory for Air Quality and Health, Queensland University of Technology, Brisbane, Queensland, Australia.
概括
这项研究引入了一种新方法,用于估计SARS-CoV-2等空气传播病原体的传染性排放率. 研究结果表明,当前的通风可能不足以应对拥挤空间中的高度传染性疾病.
科学领域:
- 环境微生物学环境微生物学
- 传染病流行病学 传染病流行病学
- 公共卫生工程 公共卫生工程
背景情况:
- 准确的传染性排放率对于空气传播风险评估至关重要.
- 现有的数据通常依赖于有限的超级传播事件估计.
- 预测方法可以标准化和改进这些估计.
研究的目的:
- 为了评估SARS-CoV-2传染性排放率的预测估计方法.
- 用新的估计来比较各种呼吸道病原体的传染性.
- 评估通风在缓解空气传播在聚集的环境中的有效性.
主要方法:
- 应用了对SARS-CoV-1,SARS-CoV-2,MERS,麻疹,腺病毒,鼻病毒,科克萨基病毒,流感和结核菌菌的预测估计方法.
- 计算量子排放率 (ERq),并将其与文献值进行比较.
- 在不同通风率下的教室和兵营环境中,模拟的感染风险和事件复制数.
主要成果:
- 平均SARS-CoV-2排放率 (2.7量子h-1) 相当于活性结核病,高于流感,但低于麻疹.
- 在不同的通风率中,SARS-CoV-2,麻疹和结核病的事件复制数超过了1.
- 目前的通风标准对于具有高排放率的病原体,如SARS-CoV-2,可能不足.
结论:
- 预测估计方法提供了一致和有价值的量子排放率数据.
- 像SARS-CoV-2这样的高度传染性病原体在空气中传播可能需要的不仅仅是标准通风.
- 需要采取额外的控制措施来控制空气传播疾病在聚集的环境中传播.
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